Enhance changelog verifier script

Signed-off-by: Kunal Kotwani <kkotwani@amazon.com>

.github/workflows/changelog_verifier.yml

@@ -1,19 +1,31 @@
 name: "Changelog Verifier"
 on:
   pull_request:
-    types: [opened, edited, review_requested, synchronize, reopened, ready_for_review, labeled, unlabeled]
+    types: [opened, synchronize, reopened, ready_for_review, labeled, unlabeled]
 
 jobs:
   # Enforces the update of a changelog file on every pull request
   verify-changelog:
-    if: github.repository == 'opensearch-project/OpenSearch'
+    #    if: github.repository == 'opensearch-project/OpenSearch'
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
           ref: ${{ github.event.pull_request.head.sha }}
-
       - uses: dangoslen/changelog-enforcer@v3
+        id: verify-changelog-3x
+        with:
+          skipLabels: "autocut, skip-changelog"
+          changeLogPath: 'CHANGELOG-3.0.md'
+        continue-on-error: true
+      - uses: dangoslen/changelog-enforcer@v3
+        id: verify-changelog-2x
         with:
           skipLabels: "autocut, skip-changelog"
+          changeLogPath: 'CHANGELOG-2.0.md'
+        continue-on-error: true
+      - run: |
+          if [[ ${{ steps.verify-changelog-3x.outcome }} == 'failure' && ${{ steps.verify-changelog-2x.outcome }} == 'failure']]; then
+            exit 1
+          fi